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Method and device for querying reconstructed metadata of redundant array of independent disks

A redundant disk array and metadata technology, applied in the field of metadata query, can solve problems such as startup time exceeding expectations, and achieve the effect of simple structure, prominent substantive features, and reliable design principles

Active Publication Date: 2021-03-12
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] When the system starts and restarts, the existing design performs metadata query operations in batches to meet the concurrent requirements, which leads to the problem that the startup time of the existing system design exceeds expectations. The present invention provides a reconstruction of independent redundant disk array Method and device for metadata query

Method used

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  • Method and device for querying reconstructed metadata of redundant array of independent disks
  • Method and device for querying reconstructed metadata of redundant array of independent disks
  • Method and device for querying reconstructed metadata of redundant array of independent disks

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Embodiment Construction

[0075] In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0076] like figure 1 As shown, an embodiment of the present invention provides a method for reconstructing metadata query of an independent redundant disk array, including the following steps:

[0077] S1: Increase the cache area for extending the metadata header to change the metadata storage structure;

[0078] S2: Ini...

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Abstract

The invention provides a method and a device for querying reconstructed metadata of a redundant array of independent disks. The method comprises the following steps: adding a cache region for expanding a metadata head to change a metadata storage structure; initializing the changed metadata storage structure; after metadata initialization is completed, receiving a query request, and judging the received query request; if the received query request is a metadata query request, providing a metadata query interface for metadata query; and if the received query request is a metadata batch query request, providing a metadata batch query interface to perform metadata batch query. Therefore, it is ensured that the method has the same time complexity as a single query in some scenes needing batchquery.

Description

technical field [0001] The invention relates to the technical field of metadata query, in particular to a method and a device for reconfiguring metadata query of an independent redundant disk array. Background technique [0002] In a storage device, when a disk in a RAID is lost, a method of mathematically restoring lost disk data to a replacement disk is widely used as one of means for data recovery. Data reconstruction is carried out with the help of metadata, and metadata records data recovery status in units of stripes. [0003] When the system is started and restarted, the existing design performs metadata query operations in batches to meet the concurrency requirements, which causes the startup time of the existing system design to exceed expectations. Contents of the invention [0004] When the system starts and restarts, the existing design performs metadata query operations in batches to meet the concurrent requirements, which leads to the problem that the startu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0689G06F3/0656G06F3/0638G06F3/0611
Inventor 朱红玉
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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